Bed.



PATENTED AUG. 11,1 903. J'. WYSSA.

BED.

APPLICATION FILED JUNE 12, 1902.

3 SHEETS-SHBET 1.

H0 MODEL.

PATENTED AUG. 11, 1903. J; WYSSA.

BED

APPLICATION FILED JUNE 12, 1902.

3 SHEETS-SHEET 2.

N0 MODEL.

P'ATENTED AUG. 1 1903. J. WYSSA.

BED

APPLIUATION FILLED JUNE 12, 1902.

8 SHEETS-SHEET 3.

I0 MODEL.

UNITED STATES Patented August 11, 1903.

JEAN W'YSSA, OF GENEVA, SWITZERLAND.

BED.

SPECIFICATION forming part of Letters Patent No. 736,188, dated August11 1903.

$erial No. 111,290; (No model.)

To all whom it may concern.-

Be it known that LJEAN WYssA, manufacturer, a citizen of the Republic ofSwitzerland, anda resident of Geneva, Switzerland, have invented certainnew and useful Improvements in and Relating to Beds, of which thefollowing is a specification.

The invention refers to an improved construction of that class of bedswhich is intended to be used for sick persons-for instance, inhospitals-and which are provided with means for mechanically raising thebody of the sick person from the mattress on which she is lying, and tosupport either the whole body in' a horizontal 'or inclined position or,the upper part of the body in an adjustable inclined position, and toalso support one or both of the legs in such an adjustable inclinedposition.

The invention further comprises an improved construction of thespring-mattress and improved means for moving and fastening thedifferent parts of the improved bed in their different positions.

The accompanying drawings, which make a part of the presentspecification, show one form of construction of the invention.

In the drawings, Figure 1 is a front elevation of the improved bed inwhich the device for raising'the body of the sick person is raised to acertain height and incline. Fig. 2 is a horizontal section of the bedwith plan view of the spring-mattress. Fig. 3 is a perspectiveview ofthe divided sheet forming the means for raising the body of the sickperson. Fig. 4 is a vertical section of Fig. 1 on the line A B seen fromleft to right. Figs. 5 and 6 show separately at a larger scale theconstruction of the pistons 0 and supports 19. Figs. 7 and 8 showseparately the construe tion of the improved truckles in two differentpositions.

The frame of the improved bed is formed of a head portion a and of afoot portion 19, which are connected with one another ,by means of theframec of the spring-mattress, which is secured at-a' and b,respectively, to suitable projectionsor ears a b of the said head a andfoot I), and by means of suitable supports d hooked or otherwiseconnected to the said parts of the frame. The said spring-mattress, Fig.2, is formed of two main tubes 6 9, having each in their middle portiona bearing f, provided with a screw g with screw-nut g. A wire h or itsequivalent is fixed to the two ends of each tube 6 and passes through ahole or a forked head of the said screw g, and the said wires 71. ortheir equivalent form with the main tube 6 a sort of arched armed beams,which are connected to one another by means of suitable rigid crossbarsor traverses t' and a? and by means of spiral springs it, intended tosupport the body of the sick person. Those of the springs which areintended to support the upper portion of the body are fixed to twobearingsl l, which are pivotally connected to the main tubes 6 e bymeans of the traverse '6, and those of the springs k which are intendedto support the legs are fixed to two bearings m m, which are pivotallyconnected to the main tubes 6 e by means of the traverse i. The saidbearings Z and m are respectively provided with adjustable supports Z m,which may be fixed to the desired position by means of setting-screws Zm The main frame of the bedis composed of four tubular posts n, providedwith an improved construction of truckles intended to allow the bed tobe easily rolled to and fro, if desired, and to lock the said trucklesto prevent such rolling when it is preferred to have the bed remainstationary. effect each of the truckles n is provided with a stem nmounted to slide vertically within the post or leg of the bed-frame. Thesaid stem 91 is provided with a recess a into which engages a pin ncrossing the said leg of the bed-frame and preventing the truckle fromescaping out of the latter. Between the usual socket n of the saidtruckle and the lower end of the leg of the frame there is provided abelt a, capable of being rotated from its position shown in Fig. 7 toits position shown in Fig. 8. Now, as it is shown in the said figures ofthe drawings, the upper face of the socket n is lower than the peripheryof the roller, and if the bolt n is placed into the position shown inFig. 6 the truckle is firmlylocked in its position, the portion ofweight of the bed which bearsupon the one leg of the bed to which thetruckle is secured bearing by means of the bolt n directly upon theperiphery of the roller, thus preventing To that its rotation. If one ofthe truckles of the bed is to be locked in the manner as described, onemust raise the leg of the bed to which the said truckle is secured androtate the bolt 72 from its position shown in Fig. into the one of Fig.6. Each of the four tubular posts n is furthermore provided with aninner earriage or piston 0, capable of moving up and down in the sameand provided with suitable rollers 0, intended to roll on the innerwalls of the said tubular posts at. The said carriages or pistons 0 areprovided with suitable ears 0 projecting out of the tubes 97. through alongitudinal slot provided in each of them, and to the said ears 0 ofeach carriage or piston 0 is hinged a bearing or snpportp or p, to whichsuitable cross-bars or traverses q or q may be secured to support theends of the adjustable portion of the piece of fabric 3 intended toraise and to incline certain portions of the body of the sick person.

The lower end of each of the two hearings or supports of the head-frameand p of the foot-frame are connected with one another by means of across-shaft r or r, to which are fixed the ends of the fixed portion ofthe divided sheet 3, Fig. 3. The cross-shafts r r are each provided witha click-wheel T in which engages a click or pawl r pivotally connectedto the support 10 or 19, respectively. The said cross-shafts are furtherprovided with a square portion, to which a suitable crank may betemporarily affixed with a view of imparting to the said cross-shafts rand r a suitable rotation intended to cause the fixed portion of thedivided sheet 8 to be firmly stretched between the shaft and the shaft1", and to thus be liable to support the body of the sick person. I

The divided sheet 8 is composed, as shown in Fig. 3, of two broad bandsor straps s and 8 forming the fixed portion of the same and the ends ofwhich are hooked by means of the loops 8 to suitable hooks .3 providedto the rotative shafts r and 1". To the said bands or straps s and 5there are fixed on the one end an adjustable piece of fabric s intendedto support in an inclined position the upperportion of the body of thesick person, and on the other end two adjustable pieces of fabric 8 ands intended to support in an inclined position the legs of the sickperson. The ends of the pieces s s and s are all provided with suitablestraps .9 8 intended to be fixed to the cross-bars q-or q, connected tothe supports 19 or p. The crossbar q, to which the end of the adjustablepiece of fabric 3 is to be fixed, is fixed to sliding bearings t,capable of sliding up and down along the supports 19 of the bed-head,and a suitable Windlass u is provided to raise or lower the saidcrossbar g.

The carriages or pistons 0, placed in the tubular posts n of the headportion of the bed-frame, are connected by a suitable wire passing onsuitable rollers w, x and m and traversing diametrically the drum 1 of asuitable Windlass acted upon by means of a'crank y and of a screw-y andscrew-wheel 3 The wire 11 after having thus crossed the drum y passes onsuitable rollers 00 and is affixed to the pistons 0, placed in thetubular posts it of the foot portion of the bed-frame. From thisarrangement it appears that if the said roller y of the Windlass isrotated in either direction the four pistons 0 will be raised or loweredat same time, thus raising the sick person from the mattress upward orlowering her again to be laid down on the mattress.

The wire or chain '0 may be combined with a tension device, as shown inFig. 1. The same is composed of a frame 2, the one end of which forms abook a, to which one portion of the wire 1; is fixed. The other end ofthe frame a bears an adjustable hook z ,with screw-nut-z to which theother portion of wire 1; is fixed by means of a chain o. By screwing orunscrewing the nut Z3 the wire '0 may be more or less stretched, and ifthe bed is to be taken to pieces the connection of the head-frame andfoot-frame of the same may be easily interrupted by unhooking the chainc.

The posts 72 of the bed-frame are furthermore provided with a series ofholes 7%, into which suitable pins are intended to be placed, crossingthe said tubular studs, with a view of temporarily supporting thepistons 0, and thereby releasing the suspension wire 11. This allows thefixed portion of the divided sheetthat is to say, the whole body of thesick personto be suspended in an inclined position, as shown in dottedlines in Fig. 1.

Having thus fully described myinvention, I claim 1. In a bed, twotension devices adjustably I mounted at the head and foot of the bed, adivided sheet, one portion of which'is stretched between the saidtension devices and separate adjustable supports for the other portionsof the sheet for supporting certain parts of the person in an inclinedposition, substantially as set forth.

2. In a bed, adjustable head and foot frames, cross-shafts carried bythe head and foot frames, longitudinal straps or hands stretched betweensaid shafts, an adjustable cross-shaft carried by one of the frames anda piece of fabric secured at. one end to the said adjustable cross-shaftand at its other end to the said straps or bands, substantially as setforth.

3. In a bed, adjustable head and foot frames, cross-shafts carried bythe head and foot frames, longitudinal straps or hands of fabricstretched between said shafts, adj ustable cross-shafts carried by saidframes and pieces of fabric secured to the said straps or bands and tothe said adj ustable cross-shafts, substantially as set forth.

4. In a bed, four tubular posts, a carriage or piston mounted to slidevertically in each of said posts, a cross-shaft carried by each twoadjacent carriages or pistons, a sheet stretched between saidcross-shafts and a single operating means for raising and lowering r allof the carriages or pistons simultaneously,

substantially as set forth.

5. In a bed, two head posts and two footposts, and a spring-mattresssupported thereby comprising two main tubes each having a hearing at itsmiddle portion, an adjustable screw engaging the bearing and a wireengaging the said screw and the opposite ends of'the tube and suitablecross-bars and leading from the several carriages to the windlass,substantially as set forth. a

7. In a bed, two tubular head-posts, two tubular foot-posts, a carriageor piston fitted to slide vertically in each post, a sheet supported bythe carriages, a common Windlass, flexible connections leading from thecarriages to the Windlass, and separable tension devices in the flexibleconnections for permitting the bed to be taken apart, substantially asset forth.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two subscribing witnesses.

JEAN WYSSA.

Witnesses:

E. IMER-SCHNEIDER, L. H. MUNIER.

